CN115625115A

CN115625115A - Poultry animal pellet feed is impurity separation equipment for pelletization

Info

Publication number: CN115625115A
Application number: CN202211191769.7A
Authority: CN
Inventors: 陈洪伟; 李蕊蕊; 郭小龙; 于伟伟; 吴孝雪; 王海岩
Original assignee: Heilongjiang Hengji Agricultural Machinery Co ltd
Current assignee: Heilongjiang Hengji Agricultural Machinery Co ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-01-20

Abstract

The invention discloses an impurity separation device for granulating livestock pellet feed, which comprises a sieve barrel, wherein the sieve barrel is transversely arranged, the shape of the sieve barrel is set to be conical, a plurality of material pushing plates are arranged on the inner wall of the sieve barrel, the material pushing plates are arranged along the axial direction of the sieve barrel, a hollow shaft is arranged in the middle of the sieve barrel, a plurality of air injection pipes are communicated and arranged on the outer wall of the hollow shaft, a material suction pipeline structure is arranged on the outer wall of the sieve barrel, and the material suction pipeline structure provides negative pressure suction force for the interior of the sieve barrel; through throwing to pellet feed fly turn over with air-blast separation processing, can conveniently make the dust impurity between the pellet feed and the impurity on pellet feed surface keep away from pellet feed fast, conveniently carry out thoroughly, quick separation processing to pellet feed and impurity, improve the impurity separation effect to improve pellet feed's production quality, simultaneously because pellet feed can carry out continuous dynamic screening edulcoration processing, thereby effectively improve pellet feed's processing speed, improve work efficiency.

Description

Poultry animal pellet feed is impurity separation equipment for pelletization

Technical Field

The invention relates to the technical field of feed processing equipment in emerging strategic industries, in particular to impurity separation equipment for pelletizing livestock pellet feed.

Background

As is well known, the feed eaten by livestock breeding mainly contains substances such as amino acid, vitamins and high protein, which can provide required nutrient substances for animal growth, the feeding work of the feed is generally carried out in a form of granules, so that the feed is convenient for animals to eat, the granular feed needs to be subjected to screening treatment after granulation processing, so that substances such as dust and small granular feed in the granular feed can be separated, and the purity of the feed is improved.

Disclosure of Invention

In order to solve the technical problem, the invention provides impurity separation equipment for granulating livestock pellet feed.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

poultry pellet feed is impurity separation equipment for pelletization, including a sieve section of thick bamboo, a sieve section of thick bamboo is transversely put, and the shape of a sieve section of thick bamboo sets up to the toper, is provided with a plurality of scraping wings on the sieve section of thick bamboo inner wall, and the scraping wing is along a sieve section of thick bamboo axis direction, and the middle part of a sieve section of thick bamboo is provided with the hollow shaft, and the intercommunication is provided with a plurality of jet-propelled pipes on the hollow shaft outer wall, be provided with on the sieve section of thick bamboo outer wall and inhale the material pipeline structure, inhale the material pipeline structure and provide negative pressure suction to sieve section of thick bamboo inside.

Further, inhale material pipeline structure comprises a plurality of arc shroudings and a plurality of flute plate of breathing in to arc shrouding and the flute plate position of breathing in are crisscross, and a plurality of arc shroudings and a plurality of flute plate of breathing in constitute and accomplish annularly, and the inner wall of arc shrouding shelters from the filtration pore on to the sieve section of thick bamboo, and the intercommunication is provided with the negative pressure pipe on the lateral wall of flute plate of breathing in, and negative pressure pipe opening direction is down.

Furtherly, the both ends of a sieve section of thick bamboo all communicate and are provided with the toper and support the fill to the toper supports to fight and rotates with a sieve section of thick bamboo to be connected, and the outside of a sieve section of thick bamboo is provided with outer box, and the toper supports to fight and fixes on outer box, and the toper that lies in a sieve section of thick bamboo input supports to fight to go up the intercommunication and is provided with the inlet pipe, and the toper that lies in a sieve section of thick bamboo output supports to fight to go up the intercommunication and is provided with row material pipe, is fixed with the connecting seat on the outer wall of the frid of breathing in, and the connecting seat is fixed on the inner wall of outer box.

Further, the output end direction of the air injection pipe is along the circumferential direction of the hollow shaft, the end part of the hollow shaft penetrates through the conical support hopper at the output end of the screen drum and is connected in a rotating mode, the hollow shaft is sleeved with a rotating sleeve, the rotating sleeve is inserted into the screen drum, a connecting rod is fixed to the outer wall of the rotating sleeve, and the outer end of the connecting rod is fixed to the inner wall of the screen drum.

Furthermore, a material collecting groove is formed in the bottom of the outer box body, an air guide barrel is arranged on the side wall of the outer box body and is communicated with the interior of the material collecting groove, and a filter plate is covered at the communication position of the air guide barrel and the material collecting groove;

a right-angle supporting plate is arranged on the side wall of the conical supporting hopper at the output end of the screen drum, the right-angle supporting plate plugs the outer end of the hollow shaft, and the right-angle supporting plate is rotationally connected with the hollow shaft;

an air pump is fixed on the outer wall of the outer box body, air guide tubes are arranged at the input end and the output end of the air pump, the air guide tubes at the input end of the air pump are communicated with the air guide barrel, and the air guide tubes at the output end of the air pump are installed on the right-angle supporting plate and penetrate through the right-angle supporting plate to be communicated with the hollow shaft.

Furthermore, a collecting bin is communicated with the bottom of the collecting tank;

the material collecting groove is internally provided with a rotating shaft, one end of the rotating shaft is rotatably arranged on the inner side wall of the material collecting groove, the other end of the rotating shaft penetrates through the filter plate and is rotatably arranged on the inner side wall of the air guide barrel, the outer wall of the rotating shaft in the air guide barrel is provided with a plurality of fan blades, the outer wall of the rotating shaft in the material collecting groove is provided with a spiral plate, and the end part of the spiral plate is contacted with the outer side wall of the filter plate.

The motor is fixed on the side wall of the conical support hopper at the output end of the screen drum, a first bevel gear is arranged at the output end of the motor, two second bevel gears are arranged on the first bevel gear in a meshed mode, one second bevel gear is fixed on the rotating sleeve, and the other second bevel gear is fixed on the hollow shaft.

Further, the screen drum further comprises an outer baffle plate, the outer baffle plate is buckled on the outer sides of the motor, the first bevel gear and the second bevel gear, and the outer baffle plate is fixed on the side wall of the conical support hopper at the output end of the screen drum.

Compared with the prior art, the invention has the beneficial effects that: through throwing to pellet feed and fly to turn and air-blast separation processing, can conveniently make the dust impurity between the pellet feed and the impurity on pellet feed surface keep away from pellet feed fast, conveniently carry out thorough, quick separation processing to pellet feed and impurity, improve the impurity separation effect to improve pellet feed's production quality, simultaneously because pellet feed can carry out continuous dynamic screening edulcoration processing, thereby effectively improve pellet feed's processing speed, improve work efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the outer case of FIG. 1;

FIG. 3 is an enlarged view of the suction slot plate of FIG. 2;

FIG. 4 is a schematic view of the construction of the screen cylinder inside the arcuate closure plate of FIG. 3;

FIG. 5 is a left side view of the structure of the suction pipe in FIG. 3;

FIG. 6 is a schematic cross-sectional structural view of the screen cylinder of FIG. 4;

FIG. 7 is an enlarged schematic view of the internal structure of the outer baffle of FIG. 1;

in the drawings, the reference numbers: 1. a screen cylinder; 2. a material pushing plate; 3. a hollow shaft; 4. a gas injection pipe; 5. an arc-shaped sealing plate; 6. a suction slot plate; 7. a negative pressure tube; 8. a conical support hopper; 9. an outer case; 10. a feeding pipe; 11. a discharge pipe; 12. a connecting seat; 13. rotating the sleeve; 14. a connecting rod; 15. a gas guiding barrel; 16. filtering the plate; 17. a right-angled support plate; 18. an air pump; 19. a gas-guide tube; 20. a collecting bin; 21. a rotating shaft; 22. a fan blade; 23. a spiral plate; 24. a motor; 25. a first bevel gear; 26. a second bevel gear; 27. an outer baffle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.

As shown in fig. 4 and 6, the impurity separation device for granulating granulated poultry and livestock feed of the present invention comprises a sieve drum 1, wherein the sieve drum 1 is transversely arranged, the shape of the sieve drum 1 is set to be conical, a plurality of material pushing plates 2 are arranged on the inner wall of the sieve drum 1, the material pushing plates 2 are arranged along the axial direction of the sieve drum 1, a hollow shaft 3 is arranged in the middle of the sieve drum 1, a plurality of air injection pipes 4 are communicated on the outer wall of the hollow shaft 3, a material suction pipe structure is arranged on the outer wall of the sieve drum 1, and the material suction pipe structure provides negative pressure suction force for the inside of the sieve drum 1.

Specifically, the granulated feed is guided into the screen cylinder 1 through the narrow-end of the screen cylinder 1, the screen cylinder 1 is rotated, the screen cylinder 1 drives a plurality of material pushing plates 2 therein to synchronously rotate, the material pushing plates 2 can push the granulated feed in the screen cylinder 1 to move upwards, when the granulated feed moves to the upper side of the screen cylinder 1, the granulated feed rolls down to the bottom of the screen cylinder 1 along the surface of the material pushing plates 2 so as to throw and turn the granulated feed, meanwhile, because the screen cylinder 1 is conical, the granulated feed in the screen cylinder 1 moves towards the wide-mouth direction of the screen cylinder 1 along the inner wall of the screen cylinder 1 when turning, air is blown into the screen cylinder 1 through the hollow shaft 3 and the air injection pipe 4, so that the air flow carries out air blasting treatment on the granulated feed in a turning state in the screen cylinder 1, conveniently make in the dust between the pellet feed passes the filtration pore on a sieve section of thick bamboo 1 and enters into the material suction pipeline structure, because pellet feed throws and flies the motion of stirring, thereby make pellet feed's the exposed department in surface, make things convenient for the air current to carry out the air-blast blow-off processing to pellet feed surface's impurity, avoid sheltering from each other between the pellet feed and lead to the impurity separation effect to descend, it can provide negative pressure suction to sieve section of thick bamboo 1 inside to inhale the pipeline structure, thereby the separation effect of impurity accelerates, the filtration pore on the sieve section of thick bamboo 1 can carry out the sieve material processing to pellet feed, the wide mouthful of a pellet feed accessible sieve section of thick bamboo 1 through impurity separation discharges, thereby accomplish pellet feed's impurity separation's purpose.

Because sieve section of thick bamboo 1 continuously rotates, can make pellet feed lead to in the sieve section of thick bamboo 1 in succession to realize that equipment is to pellet feed's continuous sieve material separation processing, improve pellet feed's continuity, thereby improve equipment's work efficiency.

It can be seen that through throwing to fly to pellet feed and turn and the separation processing of blowing, can conveniently make the dust impurity between the pellet feed and the impurity on pellet feed surface keep away from pellet feed fast, conveniently carry out thorough, quick separation processing to pellet feed and impurity, improve the impurity separation effect to improve pellet feed's production quality, simultaneously because pellet feed can carry out continuous dynamic screening edulcoration processing, thereby effectively improve pellet feed's processing speed, improve work efficiency.

As shown in fig. 5, as a preferred mode of the above embodiment, the suction pipeline structure is composed of a plurality of arc-shaped closing plates 5 and a plurality of suction slot plates 6, the arc-shaped closing plates 5 and the suction slot plates 6 are staggered in position, the arc-shaped closing plates 5 and the suction slot plates 6 form a complete ring shape, the inner walls of the arc-shaped closing plates 5 shield the filter holes on the screen drum 1, the side walls of the suction slot plates 6 are communicated with a negative pressure pipe 7, and the opening direction of the negative pressure pipe 7 faces downward.

Specifically, the inner wall of arc shrouding 5 can shelter from the filtration pore on the sieve section of thick bamboo 1, a plurality of arc shrouding 5 and a plurality of frid 6 of breathing in are in quiescent condition, when the filtration pore removes to the frid 6 position of breathing in on the sieve section of thick bamboo 1, sieve section of thick bamboo 1 inside and the inside intercommunication of frid 6 of breathing in, negative pressure pipe 7 accessible is breathed in frid 6 and is taken out sieve section of thick bamboo 1 inside air, when the part frid 6 and the inside intercommunication of sieve section of thick bamboo 1 at a plurality of frid 6 middle parts of breathing in, surplus breathe in frid 6 and sieve section of thick bamboo 1 inside be in isolated state, because sieve section of thick bamboo 1 is in continuous rotating state, thereby make in a plurality of frid 6 of breathing in with the position of the frid 6 of breathing in of sieve section of thick bamboo 1 intercommunication last conversion, thereby make the inside air of sieve section of thick bamboo 1 get into the direction of frid 6 and last conversion, sieve section of thick bamboo 1 inside air current is in frequent switching-over state, thereby carry out the air treatment of throwing the granule impurity that turns over in the state in sieve section of thick bamboo 1, conveniently make the air current follow the impurity of negative pressure feed comprehensively clear up, thereby realize multi-direction separation pipe 7 in the quick separation of the impurity of working of the air flow, thereby the impurity of the sieve section of working of pipe.

Through the structure that adopts arc shrouding 5 and slot board 6 of breathing in, can avoid a sieve section of thick bamboo 1 exhaust impurity to fall again to a sieve section of thick bamboo 1 surface and get into a sieve section of thick bamboo 1 in to avoid the impurity to the secondary pollution of a sieve section of thick bamboo 1 inside pellet feed.

In practical use, the positions of the plurality of air suction groove plates 6 communicated with the screen drum 1 and the plurality of air suction groove plates 6 isolated from the screen drum 1 are staggered, so that the air flow in the screen drum 1 can be conveniently and uniformly reversed.

As shown in fig. 1 to fig. 3, as a preferred embodiment of the present invention, conical support hoppers 8 are connected to two ends of the screen cylinder 1, the conical support hoppers 8 are rotatably connected to the screen cylinder 1, an outer casing 9 is arranged outside the screen cylinder 1, the conical support hoppers 8 are fixed to the outer casing 9, an inlet pipe 10 is connected to the conical support hoppers 8 at the input end of the screen cylinder 1, a discharge pipe 11 is connected to the conical support hoppers 8 at the output end of the screen cylinder 1, a connecting seat 12 is fixed to the outer wall of the air suction slot plate 6, and the connecting seat 12 is fixed to the inner wall of the outer casing 9.

Specifically, through setting up outer box 9, can support a sieve section of thick bamboo 1, arc shrouding 5, the frid of breathing in 6 and toper support fill 8, two toper supports fill 8 and supports a sieve section of thick bamboo 1, and pellet feed accessible inlet pipe 10 is leading-in a sieve section of thick bamboo 1, and the pellet feed accessible in a sieve section of thick bamboo 1 is arranged material pipe 11 and is discharged.

As shown in fig. 6, as a preferred embodiment, the direction of the output end of the air injection pipe 4 is along the circumferential direction of the hollow shaft 3, the end of the hollow shaft 3 passes through the conical supporting hopper 8 at the output end of the screen drum 1 and is rotatably connected, the rotating sleeve 13 is rotatably sleeved on the hollow shaft 3, the rotating sleeve 13 is inserted into the screen drum 1, the connecting rod 14 is fixed on the outer wall of the rotating sleeve 13, and the outer end of the connecting rod 14 is fixed on the inner wall of the screen drum 1.

It is specific, rotate hollow shaft 3 and rotate cover 13, and make hollow shaft 3 and rotate cover 13 and rotate opposite direction, it drives sieve section of thick bamboo 1 through connecting rod 14 to rotate cover 13, hollow shaft 3 drives jet-propelled pipe 4 and rotates, thereby make sieve section of thick bamboo 1 and jet-propelled pipe 4 synchronous antiport, sieve section of thick bamboo 1 can drive its interior pellet feed throw and fly the motion of stirring, jet-propelled pipe 4 can carry out rotatory jet motion, 3 circumferencial direction along the hollow shaft because the opening of jet-propelled pipe 4, thereby make jet-propelled pipe 4 spun air be the spiral and outside diffusion, conveniently make the air current carry the particulate impurity to roll and rotate, pellet feed carries out self rotary motion this moment, thereby improve the contact effect of pellet feed surface and air current, improve the edulcoration effect.

As shown in fig. 1 to 2, as a preferred embodiment of the present invention, a material collecting tank is disposed at the bottom of the outer box 9, an air guide barrel 15 is disposed on a side wall of the outer box 9, the air guide barrel 15 is communicated with the interior of the material collecting tank, and a filter plate 16 is covered at a communication position of the air guide barrel 15 and the material collecting tank;

a right-angle support plate 17 is arranged on the side wall of the conical support hopper 8 at the output end of the screen drum 1, the right-angle support plate 17 plugs the outer end of the hollow shaft 3, and the right-angle support plate 17 is rotatably connected with the hollow shaft 3;

an air pump 18 is fixed on the outer wall of the outer box 9, air guide pipes 19 are arranged at the input end and the output end of the air pump 18, the air guide pipe 19 at the input end of the air pump 18 is communicated with the air guide barrel 15, and the air guide pipe 19 at the output end of the air pump 18 is installed on the right-angle supporting plate 17 and penetrates through the right-angle supporting plate 17 to be communicated with the hollow shaft 3.

Specifically, air pump 18 is through the air duct 19 of its input, air guide bucket 15 and collecting tank take out the inside air of outer box 9 from, the inside negative pressure that forms of outer box 9 is taken out the inside air of a sieve section of thick bamboo 1 through negative pressure pipe 7 and suction trough plate 6 from, the impurity that carries in the air falls into the collecting tank, and filter plate 16 can block impurity, the air that air pump 18 was taken out from can discharge to hollow shaft 3 in through its output air duct 19, the air accessible jet-propelled pipe 4 discharges into again in the sieve section of thick bamboo 1 in the hollow shaft 3, thereby make the air form the circulation flow in equipment, air current portability impurity removes the outside to a sieve section of thick bamboo 1 simultaneously.

As shown in fig. 2, as a preferred embodiment, a collecting bin 20 is arranged at the bottom of the collecting trough in a communicating manner;

the material collecting groove is internally provided with a rotating shaft 21, one end of the rotating shaft 21 is rotatably arranged on the inner side wall of the material collecting groove, the other end of the rotating shaft 21 penetrates through the filter plate 16 and is rotatably arranged on the inner side wall of the air guide barrel 15, the outer wall of the rotating shaft 21 in the air guide barrel 15 is provided with a plurality of fan blades 22, the outer wall of the rotating shaft 21 in the material collecting groove is provided with a spiral plate 23, and the end part of the spiral plate 23 is contacted with the outer side wall of the filter plate 16.

Specifically, the air current of collecting the inslot gets into in the air guide bucket 15 and promotes flabellum 22 and rotate, and flabellum 22 drives pivot 21 and the synchronous rotation of spiral plate 23, and spiral plate 23 can promote the impurity of collecting the inslot and remove to collection bin 20 direction to conveniently make impurity gather together in collection bin 20 and collect, the tip of spiral plate 23 can scrape the clearance processing to 16 surface adsorption impurity of filter plate simultaneously, thereby improves the gas permeability of filter plate 16.

As shown in fig. 7, as a preference of the above embodiment, it further includes a motor 24, the motor 24 is fixed on the side wall of the conical supporting hopper 8 at the output end of the screen drum 1, the output end of the motor 24 is provided with a first bevel gear 25, two second bevel gears 26 are engaged with the first bevel gear 25, one of the second bevel gears 26 is fixed on the rotating sleeve 13, and the other second bevel gear 26 is fixed on the hollow shaft 3.

Specifically, the motor 24 drives two second bevel gears 26 to rotate synchronously through the first bevel gear 25, and the two second bevel gears 26 rotate in opposite directions, so as to drive the hollow shaft 3 and the rotating sleeve 13 to rotate synchronously and reversely.

As shown in fig. 1, as a preferred embodiment, the screen drum further comprises an outer baffle 27, the outer baffle 27 is buckled outside the motor 24, the first bevel gear 25 and the second bevel gear 26, and the outer baffle 27 is fixed on the side wall of the tapered support bucket 8 at the output end of the screen drum 1.

Specifically, through setting up outer baffle 27, can conveniently shelter from the protection to motor 24, first bevel gear 25 and second bevel gear 26 in it, improve the security of equipment operation.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a birds poultry pellet feed is impurity separation equipment for pelletization, a serial communication port, including a sieve section of thick bamboo (1), sieve section of thick bamboo (1) is transversely put, and the shape of sieve section of thick bamboo (1) sets up to the toper, is provided with a plurality of scraping wings (2) on sieve section of thick bamboo (1) inner wall, and scraping wings (2) are along sieve section of thick bamboo (1) axis direction, and the middle part of sieve section of thick bamboo (1) is provided with hollow shaft (3), and the intercommunication is provided with a plurality of jet-propelled pipes (4) on hollow shaft (3) outer wall, be provided with on sieve section of thick bamboo (1) outer wall and inhale material pipeline structure, inhale material pipeline structure and provide negative pressure suction to sieve section of thick bamboo (1) inside.

2. The impurity separation device for granulated livestock feed as claimed in claim 1, wherein the suction pipeline structure is composed of a plurality of arc-shaped sealing plates (5) and a plurality of suction slotted plates (6), the arc-shaped sealing plates (5) and the suction slotted plates (6) are staggered in position, the arc-shaped sealing plates (5) and the suction slotted plates (6) form a complete ring shape, the inner wall of the arc-shaped sealing plates (5) shields the filtering holes on the screen drum (1), the side walls of the suction slotted plates (6) are communicated with negative pressure pipes (7), and the opening direction of the negative pressure pipes (7) faces downwards.

3. The impurity separation device for granulated livestock feed as claimed in claim 2, characterized in that the two ends of the sieve cylinder (1) are both provided with a conical support hopper (8) in communication, the conical support hopper (8) is rotatably connected with the sieve cylinder (1), the outer side of the sieve cylinder (1) is provided with an outer box (9), the conical support hopper (8) is fixed on the outer box (9), the conical support hopper (8) at the input end of the sieve cylinder (1) is provided with an inlet pipe (10) in communication, the conical support hopper (8) at the output end of the sieve cylinder (1) is provided with a discharge pipe (11) in communication, the outer wall of the air suction slot plate (6) is fixed with a connecting seat (12), and the connecting seat (12) is fixed on the inner wall of the outer box (9).

4. The impurity separating device for granulated poultry and livestock feed as claimed in claim 3, characterized in that the direction of the output end of the air injection pipe (4) is along the circumferential direction of the hollow shaft (3), the end of the hollow shaft (3) passes through the conical supporting hopper (8) at the output end of the screen drum (1) and is rotatably connected, a rotating sleeve (13) is rotatably sleeved on the hollow shaft (3), the rotating sleeve (13) is inserted into the screen drum (1), a connecting rod (14) is fixed on the outer wall of the rotating sleeve (13), and the outer end of the connecting rod (14) is fixed on the inner wall of the screen drum (1).

5. The impurity separating device for granulated livestock feed as claimed in claim 4, wherein the bottom of the outer box (9) is provided with a material collecting groove, the side wall of the outer box (9) is provided with an air guide barrel (15), the air guide barrel (15) is communicated with the interior of the material collecting groove, and the communicating position of the air guide barrel (15) and the material collecting groove is covered with a filter plate (16);

a right-angle support plate (17) is arranged on the side wall of the conical support hopper (8) at the output end of the screen drum (1), the right-angle support plate (17) blocks the outer end of the hollow shaft (3), and the right-angle support plate (17) is rotatably connected with the hollow shaft (3);

an air pump (18) is fixed on the outer wall of the outer box body (9), air guide pipes (19) are arranged at the input end and the output end of the air pump (18), the air guide pipes (19) at the input end of the air pump (18) are communicated with an air guide barrel (15), and the air guide pipes (19) at the output end of the air pump (18) are installed on a right-angle supporting plate (17) and penetrate through the right-angle supporting plate (17) to be communicated with the hollow shaft (3).

6. The impurity separating device for granulated poultry and livestock feed as claimed in claim 5, characterized in that the bottom of said collecting chute is connected with a collecting bin (20);

the material collecting tank is internally provided with a rotating shaft (21), one end of the rotating shaft (21) is rotatably installed on the inner side wall of the material collecting tank, the other end of the rotating shaft (21) penetrates through the filter plate (16) and is rotatably installed on the inner side wall of the air guide barrel (15), the outer wall of the rotating shaft (21) in the air guide barrel (15) is provided with a plurality of fan blades (22), the outer wall of the rotating shaft (21) in the material collecting tank is provided with a spiral plate (23), and the end part of the spiral plate (23) is in contact with the outer side wall of the filter plate (16).

7. The impurity separating apparatus for granulated livestock feed as claimed in claim 6, further comprising a motor (24), wherein the motor (24) is fixed on the side wall of the conical supporting hopper (8) at the output end of the screen drum (1), the output end of the motor (24) is provided with a first bevel gear (25), the first bevel gear (25) is provided with two second bevel gears (26) in a meshing manner, one of the second bevel gears (26) is fixed on the rotating sleeve (13), and the other second bevel gear (26) is fixed on the hollow shaft (3).

8. The impurity separating device for granulated livestock feed as claimed in claim 7, further comprising an outer baffle (27), wherein the outer baffle (27) is buckled outside the motor (24), the first bevel gear (25) and the second bevel gear (26), and the outer baffle (27) is fixed on the side wall of the tapered support hopper (8) at the output end of the screen drum (1).